@article {666996,
	title = {Semiparametric Estimation for Causal Mediation Analysis with Multiple Causally Ordered Mediators},
	journal = {Journal of the Royal Statistical Society: Series B (Statistical Methodology)},
	volume = {84},
	number = {3},
	year = {2022},
	pages = {794-821},
	url = {https://rss.onlinelibrary.wiley.com/doi/full/10.1111/rssb.12487},
	author = {Xiang Zhou}
}
